Responses
True but I don't think this is a one time thing. I think he had to consume more than just once something with the solution with it. Plus, we all know that at the moment Kyon wouldn't do it. Maybe someone is trying to push the suspicion on him?
It's not Kyon, cuz he was just asking Lucaon to eat with him but he don't prepare the food. It was Cecilia's servant who always prepare the food. So it can't be Kyon.